词汇	延9油层组
释义	延9油层组 Yan 9 Oil Layer
随便看	cleaning nozzle cleaning nozzles of spraying apparatus cleaning, nursing cleaning of aluminum cleaning of ballast shoulder cleaning of base film Cleaning of Beer Plant Workshop cleaning of boiler TUBE cleaning of boiler TUBES cleaning of boreholes or wells cleaning of bottles cleaning of brazed surfaces cleaning of bunker cleaning of cargo tank cleaning of casting cleaning of castings cleaning of coal cleaning of coal energy cleaning of coke ovens using hydraulic fluids cleaning of commutators cleaning of conductor cleaning of conduits cleaning of contacts cleaning of cooling medium Cleaning of Copper Smelting Slag in Chile